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rPGCLC-derived pups (Generated by injection of rPGCLC-derived spermatids into rat oocytes)

Rat pups born from sperm artificially produced from stem cells

7 April 2022

Rat sperm cells derived from stem cells in the lab were used to fertilise eggs and produce healthy offspring for the first time in a procedure that could be used in conservation


envelope

Scientists have worked out how to send viable mouse sperm on postcards

5 August 2021

A simple way to transfer sperm, freeze-dried on a sheet of paper, could find an application in scientific studies and animal husbandry


egg being fertilised in IVF

Study of how genes influence menopause may improve fertility treatment

4 August 2021

Study of how genes influence menopause could improve fertility treatments, research in mice suggests


The number of twins in the world is the highest it has ever been

The number of twins in the world is the highest it has ever been

12 March 2021

The rising use of IVF, families having children later in life and medical advances are all contributing to growing numbers of twins being born and surviving – but the rate of twin births may now be at its peak


Some mouse sperm try to sabotage rivals in race to fertilise the egg

Some mouse sperm try to sabotage rivals in race to fertilise the egg

5 February 2021

Mouse sperm carrying a certain genetic variant known as the t haplotype move faster and straighter than others – and it turns out they are trying to sabotaging their rivals


sperm swimming

Sperm have a weird way of swimming and we only noticed after 300 years

31 July 2020

For 300 years we’ve assumed sperm swim by beating their tails symmetrically, but in reality sperm rotate like a corkscrew while beating their tails asymmetrically


Lab-grown sperm could let infertile men have gene-edited children

Lab-grown sperm could let infertile men have gene-edited children

13 July 2020

The first reliable way of isolating and growing sperm stem cells could lead to new fertility treatments, including correcting mutations that block sperm production


woman and baby

Hair sample tests may give women more accurate fertility predictions

5 July 2020

Analysing the hormones in blood can help establish how many eggs a woman has left – but the hormones in hair might provide a more accurate picture of fertility


Sperm and egg

Human eggs release chemicals that attract some sperm more than others

10 June 2020

A person’s eggs release chemicals after sex that preferentially attract sperm from certain people, which might help explain why some people have fertility problems


Baby being breastfed

Pregnancy and breastfeeding linked to lower risk of early menopause

22 January 2020

People who have been pregnant or have breastfed a baby are less likely to enter the menopause before the age of 45, a study of 108,000 people suggests


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